When an application embedding an EvView reuses that view to display a new
document, the content of last page viewed from the previous document is
exposed to assistive technologies. In order to get the content of the
current document, the user must change pages. This problem resulted from
the assumption that the document would be set after the model was set.
https://bugzilla.gnome.org/show_bug.cgi?id=709375

get_info might be called while the document is being loaded and the
EvDocument cache is not filled yet. Use only the poppler API to make
sure we get valid values. This fixes the page size always reported as
0x0 in the properties dialog.
https://bugzilla.gnome.org/show_bug.cgi?id=711093

get_info might be called while the document is being loaded and the
EvDocument cache is not filled yet. Use only the GXPS API to make
sure we get valid values. This fixes the page size always reported as
0x0 in the properties dialog.
https://bugzilla.gnome.org/show_bug.cgi?id=711093